Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 22-12-2019 and time 17:20:53 (UTC) in region 4 km W Monte Cavallo (MC)

A magnitude ML 1.7 earthquake occured in region: 4 km W Monte Cavallo (MC), on

  • 22-12-2019 17:20:53 (UTC)
  • 22-12-2019 18:20:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9780, 12.9610 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monte Cavallo MC 4 145 145
Sellano PG 10 1079 1224
Pieve Torina MC 11 1458 2682
Serravalle di Chienti MC 11 1070 3752
Visso MC 12 1107 4859
Fiordimonte MC 12 202 5061
Preci PG 13 724 5785
Muccia MC 14 915 6700
Pievebovigliana MC 14 866 7566
Ussita MC 15 444 8010
Fiastra MC 17 559 8569
Cerreto di Spoleto PG 18 1075 9644
Castelsantangelo sul Nera MC 18 281 9925
Acquacanina MC 18 121 10046
Sefro MC 19 422 10468
Valtopina PG 19 1398 11866
Camerino MC 20 6974 18840

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
70 Km NW of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
96 Km S of Fano (60888 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2019-12-22
17:20:53		 42.9782 12.9612 11 2020-02-28
16:42:21		 Bollettino Sismico Italiano INGV 75986521
Reviewed
Rev100 		ML 1.9 2019-12-22
17:20:53		 42.9745 12.9552 11 2019-12-22
17:25:53		 Sala Sismica INGV-Roma 74902141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-22 17:20:53 ± 0.04
Latitude 42.9782 ± 0.0018
Longitude 12.9612 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75986521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 217
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 32
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.46045
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 74902141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-22 17:25:53

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 75986521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-29 07:35:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHE. 2019-12-22T17:21:09.25 0.3 undecidable manual S 217 51.1155 50 0 70
IV.ARRO.EHZ. 2019-12-22T17:21:08.32 0.1 undecidable manual S 200 47.0196 50 0.15 91
IV.EL6.EHZ. 2019-12-22T17:21:06.63 0.1 undecidable manual S 16 40.626 50 0.17 92
IV.LNSS.HHZ. 2019-12-22T17:21:06.78 0.1 undecidable manual S 171 42.1245 50 -0.08 93
IV.MF5.EHZ. 2019-12-22T17:21:06.79 0.1 undecidable manual S 88 40.4262 50 0.37 88
IV.FOSV.EHZ. 2019-12-22T17:21:06.02 0.1 undecidable manual S 335 38.7279 50 0.07 94
IT.GNU.HGE. 2019-12-22T17:21:05.99 0.3 undecidable manual S 239 37.2294 50 0.44 65
IV.MOMA.HNZ. 2019-12-22T17:21:05.36 0.3 undecidable manual S 239 37.2294 50 -0.19 69
IV.GUMA.HNN. 2019-12-22T17:21:04.51 0.3 undecidable manual S 73 31.746 50 0.42 66
IV.MMO1.EHN. 2019-12-22T17:21:03.64 0.3 undecidable manual S 106 30.9468 50 -0.24 69
IV.PF6.EHZ. 2019-12-22T17:21:02.31 0.1 undecidable manual S 47 25.9518 50 -0.23 93
IV.CESX.HHE. 2019-12-22T17:21:02.41 0.1 undecidable manual P 217 51.1155 50 -0.01 93
IV.MDAR.HNZ. 2019-12-22T17:21:02.94 0.3 undecidable manual S 32 27.9498 50 -0.15 71
IV.ASSB.HHZ. 2019-12-22T17:21:02.08 0.1 undecidable manual S 286 25.5522 50 -0.36 90
IV.MF5.EHZ. 2019-12-22T17:21:01.24 0.1 positive manual P 88 40.4262 50 0.46 86
IV.ARRO.EHZ. 2019-12-22T17:21:01.83 0.1 undecidable manual P 200 47.0196 50 0.04 93
IV.CSP1.EHZ. 2019-12-22T17:21:01.74 0.1 undecidable manual S 57 23.4543 50 -0.14 95
IV.FIU1.HNZ. 2019-12-22T17:21:01.81 0.1 undecidable manual S 354 23.4543 50 -0.08 96
IT.FOPC.HGZ. 2019-12-22T17:21:01.28 0.1 undecidable manual S 268 20.9679 50 0.06 97
IV.MC2.EHZ. 2019-12-22T17:21:00.92 0.1 undecidable manual S 112 19.9689 118 0 98
IV.FOSV.EHZ. 2019-12-22T17:21:00.32 0.1 undecidable manual P 335 38.7279 50 -0.19 92
IV.EL6.EHZ. 2019-12-22T17:21:00.73 0.1 positive manual P 16 40.626 50 -0.07 94
IT.GNU.HGE. 2019-12-22T17:21:00.88 0.3 undecidable manual P 239 37.2294 50 0.6 62
IV.LNSS.HHZ. 2019-12-22T17:21:00.74 0.1 undecidable manual P 171 42.1245 50 -0.3 89
IV.MOMA.HNZ. 2019-12-22T17:21:00.42 0.3 undecidable manual P 239 37.2294 50 0.14 70
IV.NRCA.HHZ. 2019-12-22T17:21:00.60 0.1 undecidable manual S 142 20.2686 118 -0.43 90
IV.GUMA.HNN. 2019-12-22T17:20:59.84 0.3 undecidable manual P 73 31.746 50 0.4 67
IV.MMO1.EHN. 2019-12-22T17:20:59.14 0.3 undecidable manual P 106 30.9468 50 -0.17 70
IV.ASSB.HHZ. 2019-12-22T17:20:58.25 0.1 undecidable manual P 286 25.5522 50 -0.23 93
IV.FIU1.HNZ. 2019-12-22T17:20:58.01 0.1 undecidable manual P 354 23.4543 50 -0.15 95
IV.PF6.EHZ. 2019-12-22T17:20:58.48 0.1 undecidable manual P 47 25.9518 50 -0.06 96
IV.FDMO.HHZ. 2019-12-22T17:20:58.58 0.1 undecidable manual S 58 12.0768 131 -0.1 98
IV.CSP1.EHZ. 2019-12-22T17:20:58.18 0.1 undecidable manual P 57 23.4543 50 0.02 97
IV.MDAR.HNZ. 2019-12-22T17:20:58.79 0.3 undecidable manual P 32 27.9498 50 -0.07 72
IV.NRCA.HHZ. 2019-12-22T17:20:57.45 0.1 positive manual P 142 20.2686 118 -0.22 94
IT.FOPC.HGZ. 2019-12-22T17:20:57.68 0.1 undecidable manual P 268 20.9679 50 -0.09 96
IV.CESI.HHZ. 2019-12-22T17:20:57.36 0.1 undecidable manual S 303 5.4945 153 0.12 98
IV.MC2.EHZ. 2019-12-22T17:20:57.60 0.1 undecidable manual P 112 19.9689 118 0 98
IV.FEMA.HNZ. 2019-12-22T17:20:57.67 0.3 undecidable manual S 104 7.3815 145 0.09 74
IV.FDMO.HHZ. 2019-12-22T17:20:56.36 0.1 undecidable manual P 58 12.0768 131 0.05 99
IT.MTCL.HGZ. 2019-12-22T17:20:56.92 0.1 undecidable manual S 60 3.5964 162 -0.06 100
IV.FEMA.HNZ. 2019-12-22T17:20:55.89 0.3 undecidable manual P 104 7.3815 145 0.21 72
IT.MTCL.HGZ. 2019-12-22T17:20:55.43 0.1 negative manual P 60 3.5964 162 0.1 99
IV.CESI.HHZ. 2019-12-22T17:20:55.69 0.1 negative manual P 303 5.4945 153 0.21 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.8 0.0009014513 0.128 AML other m 2019-12-22T17:20:57.57
IV.CESI.HHN. ML:1.7 0.0007120189 0.0768 AML other m 2019-12-22T17:20:57.40
IV.CESI.HNN. ML:1.6 0.0005805811000000001 0.0768 AML other m 2019-12-22T17:20:57.40
IV.CESI.HNE. ML:1.7 0.0008162709 0.0768 AML other m 2019-12-22T17:20:57.39
IV.FDMO.HHE. ML:1.9 0.0007994055 0.0896 AML other m 2019-12-22T17:20:58.99
IV.FDMO.HHN. ML:1.9 0.0009472023000000001 0.1792 AML other m 2019-12-22T17:20:58.64
IV.NRCA.HHN. ML:2.0 0.0008049564 0.1152 AML other m 2019-12-22T17:21:00.77
IV.NRCA.HNN. ML:2.0 0.0007823274 0.1152 AML other m 2019-12-22T17:21:00.78
IV.NRCA.HNE. ML:2.0 0.0008107737499999999 0.1024 AML other m 2019-12-22T17:21:00.82
IV.NRCA.HHE. ML:2.0 0.0008287642499999999 0.1152 AML other m 2019-12-22T17:21:00.81
IV.CSP1.EHN. ML:1.8 0.000353372645 0.256 AML other m 2019-12-22T17:21:01.00
IV.CSP1.EHE. ML:1.7 0.0003330435 0.2176 AML other m 2019-12-22T17:21:02.41
IV.ASSB.HHN. ML:1.4 0.00016135540000000002 0.0768 AML other m 2019-12-22T17:21:02.47
IV.ASSB.HHE. ML:1.5 0.00017093371499999997 0.1792 AML other m 2019-12-22T17:21:02.37
IV.FOSV.EHN. ML:1.2 0.000050501295000000003 0.2816 AML other m 2019-12-22T17:21:06.68
IV.EL6.EHN. ML:1.6 0.00013286150000000002 0.1792 AML other m 2019-12-22T17:21:07.63
IV.LNSS.HHE. ML:1.4 0.00007451558 0.1152 AML other m 2019-12-22T17:21:08.09
IV.LNSS.HHN. ML:1.4 0.00008650114 0.1792 AML other m 2019-12-22T17:21:07.29
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download